Spring-switch.



No. 826,433. PATENTED JULY 17, 1906.

c. g. xonns.

SPRING SWITCH. APPLICATION FILED AUG.24, 1906.

2 SHEETS-SHERRI.

\ I WITNESSES:- Q U C tum/ran a R5600 H E Qv'm ATTORNEY.

C. '0. KORNS. SPRING SWITCH.

APPLICATION FILED AUG. 24, 1906.

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y y wMa I TTORIIEF.

PATENTED JULY 17, 1906.

2 SHEETS-SHEET 2'.

CLAREH C. HORNE},

()F .JQHNSTOWN, PENNSYLVANIA, ASSIGNOR TO THE Leann-r srnEL eonraNv, A ooarosariou or PENNSYLVANIA.

No. scenes.

Specification of Letters Patent.

Patented dul 17,1906.

Application filed August 24,1905. Serial No. 275,526.

To all whlomt't mcty concern:

Be it known that I, CLARENCE C. KonNs, of Johnstown, in the county of Oambria and State of Pennsylvania, have invented a new and useful Improvement in Spring Switches, of which-the following is a full, clear, and ex act description, reference being had to the accompanying drawings, which form a part of thisspecification.

My invention has relation to certain new and useful improvements in spring-switches, and is designed to rovide slm le and efficient means whereby a switch tongue or oint maybe readily set as a spring-switch I or either right or left hand throw and also whereby the tongue may be SQIDllOOliGfl in either of its thrown ositions. Bv semilocked I mean so he d that it is prevented accidental movement, but may nevertheless "bethrown at will by a motorman or switchman.

With these objects in view my invention consists in the novel construction, arrangement, and combination of parts, all substantially as hereinafter described, and pointed out in the appended claims, reference being had to the, accompanying drawings, in which Figure l is a plan view of a portion of a parts on a lar er scale and adjusted to form the semilock; ig. 3, a section on the line 3 3 of Fig, 2; Fig. 4, a transverse section through the s ring-box; Fig. 5, a detail plan view of the tell-crank lever Fig. 6, a lan view showing the parts adjusted for a eft-handthrow spring-switch and also showing an op* erating attachment; Fig. 7, a similar view showing the adjustment for a rightdiandthrow s ring-switch, and Fig. 8 a detail view of t e operating attachment.

The letter A designates the switch structure, having the movable A oint or tongue B, pivoted at b. Formed with or attached to the structure A is a box 0, into which re jects from the tongue 2. laterally-exten ing rod or arm F1", whose free end is pivotally connected to one arm of a horizontal bell-crank lever E, pivoted at e within the said box.

F is a helical spring seated in compression between the two cones or bearings f f, one of which has a rocking hearing at g. on the end wall of the box. and the other of which is adjustahly'held on a screw-stud G, which is pivotally connected to the other arm of the said bell-crank. So arranged the bell-crank and spring together form a to gle arrangement, one member of which is the spring and the other the bell-crank.

H is a nut by means of which the adjustment of the cone, and thereby the proper tension of the spring, is secured. The connection of the stud G to the bellcrank lever may be made at either one of the three holes h h if, provided therefor. If made at the central hole It, as shown in Fig. 2, when the tongue is thrown from one running position to the other the center line of the sprin is shifted with respect to the center e, so t at the tension of thespring acts to retain the tongue at the thrown position. This tension is sufficient to prevent accidental movement of the tongue; but the latter can nevertheless be thrown by a switchman or motorman in the usual manner-by a switch-bar. If, however, the connection be made at the hole h or 72?, Figs. 6 and 7, the movement of the tongue is not suflicient to shift the line of action of the spring with respect to the center e and the switch becomes a right or left hand throw spring-switch. Thus by'a simple adjustment involving no change in the pattern or construction of the parts any switch constructed in accordance with my invention may be used either as a right or. left hand throw spring-switch or as a semilocked full-throw switch.

Where a switchman is to be stationed for .the pur ose cf throwing the switch, it maybe desirable to extend the arm D, as shown at D in Fig. 6, and to provide the same with a socket D to receive an operating-lever, D. This socket D may be located within the box 0, as in Fig. 6, or the rod 1) may be extended to any desired point, as indicated in Fig. 8.

In Fig. 6 I have also shown the stud H as extended through the spring into the outer spring-bearing f for the purpose of stiffening t e device.

It will be obvious that various changes may be made in the details of construction 811 8,

rrangement without departing from the splrrt and scope of mymvention as defined in and by the appended claims.

Having tnus described my invention, what I claim as new, and desire to secure by Let ters Patent, is I -1. The combination with a movable switch tongue or point, of a toggle arrangement one member oi which is formed by a bell-crank and the other by a spring, and a connection between the said tongue or point and the bell-crank.

2. The combination with a movable switch tongue or point, of a toggle arrangement, one

inernberl of which is a spring, and the other of 'whichvis a bell-crank, a connection between one 'end to a second armo tongue or point, of a bell-crank lever, a con-' nection between one arm of said lever and the tongue or point, a spring connected at one end to a second arm of said lever and 'havin a movable or shifting bearing at its opposite end, and means for adjusting the tension of the said spring.

The combination with a movabl switch tongue or point, of a bell'crank lever, a connection between one arm of the said lever and the point or tongue, a sgring connected at said lever and havtherewith, and an extension arm or ing a rocking bearingat its 0 posite end, and means whereby the point 0 connection between the said lever and spring may be shifted. I

6. The combination with a movable switch tongue or point, a bell-crank lever connected to said tongue or point, a spring connected to said bell-crank lever and forming a toggle therewith, and means whereby the tongue or oint may be thrown at a distance thereom substantially as described.

7. The combination with-a movable switch tongue or point, of a bell-crank leverconnected to said tongue or-point, a s ring-connected to said bell-crank lever and f drmmg a toggle o eratively connected with said parts and pr viding means whereby the tongue or point may be thrown at a distance therefrom.

8. The combination with a movable switch tongue oroint, of a bell-crank lever, a spring connecte "to onearm of said lever at one end,

and having a movable hearing at the other end whereby its line of action may shifit with respect to the center of the bell-crank, and an arm or rod connecting the bell-crank to the switch-ton ue and having an extension provided means for efi'ecting the throw of the tongue.

In testimony whereof I have aflixed my signature in presence of two witnesses.

CLARENCE C. KORNS. Witnesses:

Lonnno OCONNELL, H. W. SMITH. 

